National Museum of Nuclear Science & History
Jean Marley O’Leary began working for General Leslie Groves in June 1941, when she was hired as his personal secretary.
Hollis worked for Stone and Webster Engineering Corporation.
J. D. Graves worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Rex Edward Keller was a member of the Special Engineering Detachment, assigned to work in Seth Neddermeyer’s chemistry group at Los Alamos.
